package com.lagou.java.servlet;

import com.lagou.java.factory.AnnotationConfigBeanFactory;
import com.lagou.java.pojo.Result;
import com.lagou.java.service.ITransferService;
import com.lagou.java.utils.JsonUtils;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.nio.charset.StandardCharsets;

@WebServlet(name = "transferServlet", urlPatterns = "/transferServlet")
public class TransferServlet extends HttpServlet {

    private AnnotationConfigBeanFactory beanFactory = AnnotationConfigBeanFactory.getInstance();

    private ITransferService transferService = (ITransferService) beanFactory.getBean("transferService");

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        doPost(req, resp);
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        //设置请求的字符编码
        req.setCharacterEncoding(StandardCharsets.UTF_8.name());

        String fromCardNo = req.getParameter("fromCardNo");
        String toCardNo = req.getParameter("toCardNo");
        String moneyStr = req.getParameter("money");
        int money = Integer.parseInt(moneyStr);

        Result result = new Result();

        try {
            transferService.transfer(fromCardNo, toCardNo, money);
            result.setStatus("200");
        } catch (Exception e) {
            e.printStackTrace();
            result.setStatus("201");
            result.setMessage(e.toString());
        }

        //响应
        resp.setContentType("application/json;charset=utf-8");
        resp.getWriter().print(JsonUtils.object2Json(result));
    }
}
